Ensure CC content is attributed based on best practises

[dcwalk]

We should push our creative work citations inline with CC best practises, which states an 'ideal' attribution is

“[Creative Commons 10th Birthday Celebration San Francisco]” by [tvol] is licensed under [CC BY 2.0]"

because it includes:

1. Title
2. Author
3. Source
4. License

Details on their website: creativecommons.org/use-remix/get-permission/